National Technical Systems elected retired Lt. Gen....

National Technical Systems elected retired Lt. Gen. Aloysius G. Casey as chairman of the Calabasas engineering and testing-services concern, succeeding Aaron Cohen, who retired a month ago.

Casey recently retired from the Air Force after a 34-year military career. Among other positions, he was commander of the Air Force Ballistic Missile Office; his most recent assignment was commander of the Space Division of the Air Force Systems Command.

National Technical said Casey’s broad background in testing and systems analysis would particularly aid its aerospace testing and engineering business.